Fountain-pen filler.



H. N. CARPENTER. FOUNTAIN PEN FILLER. APPUCATION FIL'ED JULY 23. I914.

FOUNTAIN-YEN FILLER.

Lil-52mm.

To all whom it may concern:

Be it known that I, HAROLD N. ()ARPEN- TER, a citizen of the United States, and a resident of Bennington, Vermont, have invented a new and useful Improvement in Fountain-Pen Fillers, as set forth and described in the following specification and accompanying drawing.

My invention relates to fillers for fountain pens, and more particularly to'that class of fillers which fill the pen without requiring disjointing of the pen section from the barrel or reservoir section; and my invention also particularly relates to that class of fillers in which an ink package or ink bottle of a size commonly used for retailing ink and for use on a desk or table, is combined with a filling device, such as a rubber bulb, diaphragm or the like, which forms part thereof.

The object of my invention is to provide means in such devices whereby the ink in such packages may be completely exhausted or discharged into the pen, the waste of ink that has heretofore been ehtailed by the use of such devices by reason of their failure to discharge completely the last of their contents into the pen.

I have illustrated my invention in the accompanying drawing in which Figure 1 represents the combined receptacle and filler-part being represented in section. Fig. 2 is a vertical sectional view of the combined receptacle and filler inverted as in use.

In the drawing, Fig. 1 shows the device as a whole, of which 1 indicates the bottle or receptacle for the ink; 2 indicates the pumping member or diaphragm extending over the mouth of the receptacle and united both liquid and air tight to the rim or lip thereof. This may conveniently be done by forming a shoulder 3 on the lip and a mating shoulder 4 on the periphery of the dia-- phragm. The receptacle and diaphragm are securely united by means of a clamping ring 5 having screw-threaded engagement with the similarly threaded neck of the receptacle. The diaphragm is preferably of rubber or similar flexible elastic material, and itself forms a packing for the joint between the ring 5 and the lip of the receptacle 1 and insuring against leakage.

The diaphragm is provided with an openling, preferably in the form of a tubulure 6 Specification of Letters .iaten 5.

Application flied July 23,

and thereby save- Patented Sept. a, raw. 1914. Serial ito. 852,680.

.in which the pen 7 to be 'filled is inserted. This'tubulure is of a size and shape to fit closely the end of the pen, and to that end is ma de with gradually tapering inner walls so that when a pen is pushed therein it will make a tight joint with the diaphragm and permit no leakage of air or ink when the device is operated. At its inner'end the tubulure 6 terminates substantially flush with the inner face of the diaphragm; and for a short distance from its inner end the diameter or bore of the tubulure is enlarged to form a chamber or recess 8 about the inner end of the pen.

When not in use a stopper 9 is inserted in the tubulure to protect the ink from dust and evaporation and from spilling in case the receptacle is overset. The stopper has a reduced intermediate portion 10 and an enlarged end portion 11 which serves to retain the stopper in place: In operation thepen is inserted tightly in the tubulure (without disjointing the pen section from the barrel) and the receptacle is inverted, as in Fig. 2. The diaphragm 2 is given an upward and downward movement, the pen serving as a handle, and the ink is thus pumped or forced through the feed ducts of the pen into its barrel or reservoir. With devices as heretofore made, when the'contents of the bottle or receptacle were nearly exhausted, the in-stroke of the pen and diaphragm carried the end of the pen above the level of'the ink remaining in the receptacle,the pen and center of the diaphragm forming as it were, an island with the ink between it and the wall of the receptacle, and, as it is the in -stroke that forces the ink into the pen, there was no ink covering the end of the pen or its feed ducts when this stroke was eflective. As a result no ink would be forced into the pen, so that there was always a considerable quantity of ink remaining in the bottle or receptacle that could not be discharged into the pen, and that was in most cases wasted or lost to the user. My present invention herein set forth removes this objection and waste of ink, in that any ink remaining in the receptacle will, when the device is Fig. 2, collect and be retained in the chamber or recess 8 immediately about the end ofthe pen; and on the in-stroke of the pen and diaphragm this ink will be discharged into the pen. It will be seen that my inveninverted for use, as intion'provides means by which, in use, the end of the pen is always submerged in the ink so long as any remains in the receptacle,

and thus the contents of the receptacle are used to practically the last drop.

Various modifications of form, arrangement or proportions may be made in the embodiment of my invention, without departing from its essential character or prin ci 1e.

claim:

1. In a pen-fillin device the combination of an ink-receptac e, a reciprocatory diaphragm united fluid-tight to said receptacle, a tubulure in the diaphragm adapted to make fluid-tight connection with the pen, and

. an ink-collecting recess at the inner end of the tubulure, substantially as and for the purpose described.

-- 2. In a pen-filling device the combination of, an ink-receptacle, a reciprocatory dia- 'phragm imited fluid-tight to said rece tacle, and a tubulure in sai diaphragm a apted to make fluid-tight connection with the inserted pen, said tubulure terminating at its inner end in an ink-collecting recess, substantially as described. 3. In a pen-filling device the combination of a reciprocatory diaphragm united fluid- HAROLD N. CARPENTER. Witnesses B. O.- MACOMBER, L. H. SMITI'I. 

